+

WO2001009978A1 - Antenne double et dispositif radioelectrique associe - Google Patents

Antenne double et dispositif radioelectrique associe Download PDF

Info

Publication number
WO2001009978A1
WO2001009978A1 PCT/EP2000/007180 EP0007180W WO0109978A1 WO 2001009978 A1 WO2001009978 A1 WO 2001009978A1 EP 0007180 W EP0007180 W EP 0007180W WO 0109978 A1 WO0109978 A1 WO 0109978A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
radio device
transmitting
receiving
additional
Prior art date
Application number
PCT/EP2000/007180
Other languages
English (en)
Inventor
Wilhelmus M. C. Dolmans
Petrus G. M. Baltus
Lukas Leyten
Gideon W. Kant
Original Assignee
Koninklijke Philips Electronics N.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Priority to KR1020017004149A priority Critical patent/KR20010075520A/ko
Priority to JP2001514503A priority patent/JP2003506939A/ja
Priority to EP00956293A priority patent/EP1118137A1/fr
Publication of WO2001009978A1 publication Critical patent/WO2001009978A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
    • H01Q9/27—Spiral antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/362—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith for broadside radiating helical antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • H01Q1/525—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between emitting and receiving antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/08—Helical antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole

Definitions

  • Dual antenna and radio device provided therewith.
  • the present invention relates to a radio device comprising a receiving circuit and/or a transmitting circuit, and an antenna assembly including a receiving antenna coupled to the receiving circuit and/or a transmitting antenna coupled to the transmitting circuit.
  • the present invention also relates to an antenna which is suited for application in the radio device, which antenna comprises an antenna assembly including a receiving antenna and/or a transmitting antenna.
  • Such a radio device and antenna are known from EP-A-0 767 508.
  • the known radio device comprises an antenna assembly in the form of a helical antenna assembly including a receiving antenna and a transmitting antenna.
  • the radio device further comprises a receiving circuit having a receiving/matching filter and a transmitting circuit having a similar transmitting filter.
  • the radio device is provided with a transmit/receive switch or with a duplexor.
  • the radio device is characterized in that the antenna assembly comprises at least one additional antenna part, which additional antenna part is electromagnetically coupled to the receiving antenna and/or the transmitting antenna respectively.
  • the antenna according to the present invention is characterized in that the antenna comprises at least one additional antenna part, which additional antenna part is electromagnetically coupled to the receiving antenna and/or the transmitting antenna respectively.
  • the additional antenna part makes an impedance matching circuit or filter superfluous because the impedances of the receiving antenna and/or transmitting antenna each including said additional antenna part can easily be adapted directly to the input-impedance of the receiving circuit and/or to the output-impedance of the transmitting circuit respectively.
  • the structures with additional antenna parts provide a very good isolation between the receive path and the transmit path.
  • the isolation is generally better than 30 dB for a frequency band in the range of 850 MHz or higher, which can even be achieved without any transmit/receive switch or duplexor at all.
  • an antenna assembly which is helically shaped, or has any other form, which can be electromagnetically coupled to the additional antenna part of any form is suitable for the purpose.
  • An embodiment of the radio device according to the invention providing a flat base structure is characterized in that, the antenna assembly comprises at least one grounded plate. If in particular one grounded plate is coupled, either to at least one of said receiving antenna and transmitting antenna, or vice versa to the at least one additional antenna part, a variety of possible embodiments come within reach.
  • a further embodiment of the radio device according to the invention is characterized in that the antenna assembly has a patch structure. This way the structure of the antenna assembly can be integrated in a layer structure, which reduces the amount of necessary space taken up by the antenna according to the invention. Antennas including ceramic structures have an even more reduced proportion.
  • a still further embodiment of the radio device according to the invention is characterized in that the radio device is provided with a shielding element positioned approximately midway between the receiving antenna with its associated additional antenna part and the transmitting antenna with its associated additional antenna part.
  • the shielding element is a cost effective and small sized rod antenna.
  • the above mentioned matching is easily achieved in another embodiment of the antenna according to the invention, which is characterized in that the receiving antenna and/or the transmitting antenna are/is each provided with windings, and that the additional antenna part is inserted between the windings of the receiving antenna and/or the transmitting antenna respectively.
  • Matching now takes place by simply inserting the additional antenna part between a first and a second, or a second and a third winding etcetera of an antenna, and/or by angular rotation said part between the windings, and/or by influencing the insertion depth or spacial form of said part between or outside the windings.
  • Fig. 1 shows an embodiment of a radio device according to the invention provided with two dual helical antennas according to the invention
  • Fig. 2 shows an impedance versus frequency curve of the antenna of fig. 1.
  • Fig.1 shows an schematic embodiment of a radio device 1.
  • the radio device 1 may only comprise the left receiver part of fig. 1, or it may only comprise the right transmitter part thereof, or may comprise both parts, such that in the latter case the radio device 1 is arranged as a transmitter-receiver, also called transceiver.
  • the radio device 1 also comprises a antenna assembly 2 of any suitable form.
  • the antenna assembly 2 is built up as two dual helical antennas 3 and 4, which are here shown to be similar, but which generally will not be identical.
  • Each antenna 3, 4 comprises in this case several windings 3a, 4a, and additional antenna parts 3b, 4b.
  • Each antenna part 3b, 4b is electromagnetically coupled to its associated windings 3 a, 4a, respectively.
  • Such antenna parts 3b, 4b may have any suitable curved, helical or even straight form, while the parts 3b, 4b are each inserted between the spatial structure, winding or windings 3a, 4a.
  • the antenna 3a and its associated antenna part 3b are electrically separated from one another, but electromagnetically coupled to one another. The same holds for the windings 4a and its associated antenna part 4b.
  • antenna impedance adjustment can take place individually for every pair 3 a, 3b and 4a, 4b by influencing the inserting position of the additional antenna part between a first and a second, or a second and a third winding etcetera, and/or by individual angular rotation of the respective antenna parts 3b, 4b between the windings, and/or by individually influencing the insertion depth or spacial form of said part 3b, 4b between or outside the windings 3 a, 4a respectively.
  • the radio device 1 is provided with a grounded plate 5 serving in this case as a common base for the antenna assembly as a whole.
  • the windings 3 a forming the receiving antenna, and the windings 4a forming the transmitting antenna are each electrically connected to the grounded plate 5.
  • the antenna part 3b of the receiving antenna is in this case connected to an input 6 of an amplifier 7, which generally is of the low noise (LNA) type, whereas the antenna part 4b of the transmitting antenna is connected to an output 8 of a power (PA) amplifier 9.
  • LNA 7 is connected to a receiving (RX) circuit
  • PA 9 is connected to a transmitting (TX) circuit 11 of the radio device 1.
  • the radio device 1 is thus particularly suited for bi-directional voice and/or data transmission, such as with mobile communication apparatus, in particular mobile telephone, without a duplexor being necessary therefor.
  • both above receiving and transmitting antennas 3a, 3b and 4a, 4b respectively showed a sufficient isolation of more than 30 dB at a mutual distance of around 10 cm.
  • Both antennas can easily be integrated on a patch or layered structure possibly including a ceramic structure for very small sized integration, distance and isolation.
  • Application of a probe or shielding element 12 preferably a rod connected to the grounded plate 5 and to be positioned approximately midway between the receiving antenna 3a, 3b, and the transmitting antenna 4a, 4b provided adequate isolation of the respective antennas.
  • Adding the respective antenna parts changed the antenna impedance from approximately 19 ⁇ to approximately 50 ⁇ .
  • the measured bandwidth (at -10 dB return loss at 50 ⁇ ) was around 17,3 MHz at a resonance impedance of 58 ⁇ . This is roughly as shown in fig. 2, which shows impedance versus frequency curves for the real impedance part (upper curve) and the reactive impedance part (lower curve).

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Support Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Transceivers (AREA)
  • Details Of Aerials (AREA)

Abstract

L'invention concerne un dispositif radioélectrique comprenant un circuit de réception et/ou un circuit d'émission, et un ensemble antenne à antenne de réception couplée avec le circuit de réception et/ou antenne d'émission couplée avec le circuit d'émission. L'ensemble antenne comprend au moins un élément d'antenne supplémentaire, en couplage électromagnétique avec l'antenne de réception et/ou l'antenne d'émission, respectivement. Le fait d'insérer cet élément d'antenne supplémentaire entre les enroulements de l'antenne de réception et/ou l'antenne d'émission permet d'assurer un réglage indépendant des impédances d'antenne, ce qui augmente la souplesse de conception pour les émetteurs et les récepteurs, et rend par ailleurs superflue l'utilisation de duplexeurs et de circuits d'adaptation d'impédance.
PCT/EP2000/007180 1999-08-03 2000-07-24 Antenne double et dispositif radioelectrique associe WO2001009978A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020017004149A KR20010075520A (ko) 1999-08-03 2000-07-24 듀얼 안테나 및 이 안테나가 제공된 무선 디바이스
JP2001514503A JP2003506939A (ja) 1999-08-03 2000-07-24 二重アンテナ及びこのアンテナを備える無線装置
EP00956293A EP1118137A1 (fr) 1999-08-03 2000-07-24 Antenne double et dispositif radioelectrique associe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP99202551.0 1999-08-03
EP99202551 1999-08-03

Publications (1)

Publication Number Publication Date
WO2001009978A1 true WO2001009978A1 (fr) 2001-02-08

Family

ID=8240522

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/007180 WO2001009978A1 (fr) 1999-08-03 2000-07-24 Antenne double et dispositif radioelectrique associe

Country Status (5)

Country Link
EP (1) EP1118137A1 (fr)
JP (1) JP2003506939A (fr)
KR (1) KR20010075520A (fr)
CN (1) CN1319266A (fr)
WO (1) WO2001009978A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005093897A1 (fr) * 2004-03-26 2005-10-06 Perlos Technology Oy Dispositif d'antenne
WO2010014988A1 (fr) * 2008-08-01 2010-02-04 Qualcomm Incorporated Conception d'émetteur-récepteur sans fil bidirectionnel simultané
US9722317B2 (en) 2013-02-22 2017-08-01 Samsung Electronics Co., Ltd. 2-port antenna having optimum impedances of a transmitter and a receiver
US10644380B2 (en) 2006-07-18 2020-05-05 Fractus, S.A. Multiple-body-configuration multimedia and smartphone multifunction wireless devices

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100447252B1 (ko) * 2001-09-10 2004-09-07 (주)씨앤드에스 마이크로 웨이브 송수신이 분리된 안테나
US8121539B2 (en) * 2007-08-27 2012-02-21 Nokia Corporation Antenna arrangement
US20100105340A1 (en) * 2008-10-29 2010-04-29 Qualcomm Incorporated Interface for wireless communication devices
CN101916916B (zh) * 2010-07-14 2013-11-27 海能达通信股份有限公司 一种双频天线
CN103178328A (zh) * 2011-12-23 2013-06-26 北京交大思诺科技有限公司 缩小型车载天线及其设计方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4460899A (en) * 1981-01-24 1984-07-17 Metalltechnik Schmidt Gmbh & Co. Shield for improving the decoupling of antennas
JPH03236612A (ja) * 1990-02-14 1991-10-22 Nozomi Hasebe ヘリカルアンテナ
EP0526643A1 (fr) * 1991-01-28 1993-02-10 Mitsubishi Denki Kabushiki Kaisha Dispositif a antenne
EP0847101A2 (fr) * 1996-12-06 1998-06-10 Raytheon E-Systems Inc. Neutralisation de couplage d'antennes mutuel
EP0855759A2 (fr) * 1997-01-24 1998-07-29 Lk-Products Oy Antenne simple pour deux fréquences
US5805112A (en) * 1993-07-14 1998-09-08 Ericsson Inc. Extra antenna element
WO1998048475A1 (fr) * 1997-04-18 1998-10-29 Ericsson Inc. Antenne composite pour terminaux fonctionnant en duplex sans duplexeur et procede associe
US5859614A (en) * 1996-05-15 1999-01-12 The United States Of America As Represented By The Secretary Of The Army Low-loss aperture-coupled planar antenna for microwave applications

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4460899A (en) * 1981-01-24 1984-07-17 Metalltechnik Schmidt Gmbh & Co. Shield for improving the decoupling of antennas
JPH03236612A (ja) * 1990-02-14 1991-10-22 Nozomi Hasebe ヘリカルアンテナ
EP0526643A1 (fr) * 1991-01-28 1993-02-10 Mitsubishi Denki Kabushiki Kaisha Dispositif a antenne
US5805112A (en) * 1993-07-14 1998-09-08 Ericsson Inc. Extra antenna element
US5859614A (en) * 1996-05-15 1999-01-12 The United States Of America As Represented By The Secretary Of The Army Low-loss aperture-coupled planar antenna for microwave applications
EP0847101A2 (fr) * 1996-12-06 1998-06-10 Raytheon E-Systems Inc. Neutralisation de couplage d'antennes mutuel
EP0855759A2 (fr) * 1997-01-24 1998-07-29 Lk-Products Oy Antenne simple pour deux fréquences
WO1998048475A1 (fr) * 1997-04-18 1998-10-29 Ericsson Inc. Antenne composite pour terminaux fonctionnant en duplex sans duplexeur et procede associe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 016, no. 022 (E - 1156) 20 January 1992 (1992-01-20) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005093897A1 (fr) * 2004-03-26 2005-10-06 Perlos Technology Oy Dispositif d'antenne
US10644380B2 (en) 2006-07-18 2020-05-05 Fractus, S.A. Multiple-body-configuration multimedia and smartphone multifunction wireless devices
WO2010014988A1 (fr) * 2008-08-01 2010-02-04 Qualcomm Incorporated Conception d'émetteur-récepteur sans fil bidirectionnel simultané
US9722317B2 (en) 2013-02-22 2017-08-01 Samsung Electronics Co., Ltd. 2-port antenna having optimum impedances of a transmitter and a receiver

Also Published As

Publication number Publication date
JP2003506939A (ja) 2003-02-18
KR20010075520A (ko) 2001-08-09
CN1319266A (zh) 2001-10-24
EP1118137A1 (fr) 2001-07-25

Similar Documents

Publication Publication Date Title
KR100757506B1 (ko) 안테나 장치 및 무선 통신 장치
US7408515B2 (en) Mobile communication device and an antenna assembly for the device
US9397388B2 (en) Dual feed antenna
US6185434B1 (en) Antenna filtering arrangement for a dual mode radio communication device
US20030119457A1 (en) Filter technique for increasing antenna isolation in portable communication devices
EP1753504B1 (fr) Emetteur-recepteur medical et procede
EP1498984A1 (fr) Structure d'antenne à double résonance pour plusieurs gammes de fréquences
EP1256997B1 (fr) Dispositif de filtre à hautes fréquences, dispositif de filtre combiné d' une antenne d' émission/réception et appareil sans fil l'utilisant
US6144346A (en) Antenna arrangement
US7463196B2 (en) Antenna
WO2001005048A1 (fr) Structure de circuit preamplificateur hf
WO1999063616A1 (fr) Antenne a double bande non saillante pour dispositif de communication
JP2000077924A (ja) 送受信器
CN110495096A (zh) 可调谐滤波器系统、装置和方法
WO2001009978A1 (fr) Antenne double et dispositif radioelectrique associe
US8125296B2 (en) Radio device antenna filter arrangement
US6201511B1 (en) Composite antenna for duplexer-free duplex operation terminals and method
US6215449B1 (en) Systems and methods for coaxially coupling an antenna through an insulator
EP2221914A1 (fr) Antenne, système d'antenne et dispositif de communication radio portable comportant un tel système d'antenne
US9130534B2 (en) Impedance matching circuit capable of broadband operation
US20240120646A1 (en) Metal plate antenna and antenna device
US20090111405A1 (en) Signal matching module for single or multiple systems
FI110968B (fi) RF-suodatusratkaisu radiolähetin/vastaanotinta varten
KR100222797B1 (ko) 광대역 센터 로딩 안테나의 구조
WO2002039536A1 (fr) Procede de reglage d'un reseau d'integration

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 00801580.5

Country of ref document: CN

AK Designated states

Kind code of ref document: A1

Designated state(s): CN JP KR

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

WWE Wipo information: entry into national phase

Ref document number: 2000956293

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 1020017004149

Country of ref document: KR

ENP Entry into the national phase

Ref document number: 2001 514503

Country of ref document: JP

Kind code of ref document: A

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWP Wipo information: published in national office

Ref document number: 2000956293

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 2000956293

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1020017004149

Country of ref document: KR

WWW Wipo information: withdrawn in national office

Ref document number: 1020017004149

Country of ref document: KR

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载